89420505 has 16 divisors (see below), whose sum is σ = 143378304. Its totient is φ = 47589120.

The previous prime is 89420503. The next prime is 89420509. The reversal of 89420505 is 50502498.

It is not a de Polignac number, because 89420505 - 2¹ = 89420503 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89420501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1185 + ... + 13425.

It is an arithmetic number, because the mean of its divisors is an integer number (8961144).

Almost surely, 2^89420505 is an apocalyptic number.

It is an amenable number.

89420505 is a deficient number, since it is larger than the sum of its proper divisors (53957799).

89420505 is a wasteful number, since it uses less digits than its factorization.

89420505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12736.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 89420505 is about 9456.2415895534. The cubic root of 89420505 is about 447.1765689345.

The spelling of 89420505 in words is "eighty-nine million, four hundred twenty thousand, five hundred five".